Logic Masters Deutschland e.V.

Normal 6x6 Sudoku rules apply.

[TEN] Ten lines: The black line must contain one or more non-overlapping contiguous groups of cells that sum to 10.

[THR] Thermos: Digits along the gray thermometer strictly increase from the bulb to the tip.

[PAL] Palindromes: The sequence of digits along the white line must be the same when read from either direction.

[ECH] Echo lines: The purple line is filled with a repeating sequence of one or more different digits. The full sequence must appear at least twice along the line and must always repeat in its entirety.

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